JDM 23mm rear sway bar?
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JDM 23mm rear sway bar?
Do any of you guys have this on a stock suspension U.S. spec R? Since it is pretty cheap I was wondering if it is worth it. My car is mainly street driven, but I hope to get it to the track sometime soon. For the price does it make a difference? Any opinions would be appreciated.
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Re: JDM 23mm rear sway bar? (ActiveAero)
Todd00 has it on his 00ITR but he's got a Zeal FB suspension on his. He, however, did note that the car was "much looser" after the JDM rear sway bar install.
Also keep in mind that this should stiffen up the rear (increase rear roll stiffness) a fair amount since changes in swaybar diameter are to the 4th power when calculating roll stiffness (effective spring rate).
An example that comes to mind (not directly comparable) are from some VW's. A front 20mm front bar had an effective roll stiffness of 200lbs/sq in. A 25mm bar had a roll stiffness of 500lbs/sq in. So you can see a 5mm (25%) increase in diameter of the roll bar translated to a 150% increase in roll stiffness.
I don't have the exact formula and calculating for a sway bar is more difficult since it has levers, but you get the point, it should make a difference and at only ~$100 it's probably not a bad deal.
Also keep in mind that this should stiffen up the rear (increase rear roll stiffness) a fair amount since changes in swaybar diameter are to the 4th power when calculating roll stiffness (effective spring rate).
An example that comes to mind (not directly comparable) are from some VW's. A front 20mm front bar had an effective roll stiffness of 200lbs/sq in. A 25mm bar had a roll stiffness of 500lbs/sq in. So you can see a 5mm (25%) increase in diameter of the roll bar translated to a 150% increase in roll stiffness.
I don't have the exact formula and calculating for a sway bar is more difficult since it has levers, but you get the point, it should make a difference and at only ~$100 it's probably not a bad deal.
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Re: JDM 23mm rear sway bar? (typer_801)
Todd00 has it on his 00ITR but he's got a Zeal FB suspension on his. He, however, did note that the car was "much looser" after the JDM rear sway bar install.
Also keep in mind that this should stiffen up the rear (increase rear roll stiffness) a fair amount since changes in swaybar diameter are to the 4th power when calculating roll stiffness (effective spring rate).
An example that comes to mind (not directly comparable) are from some VW's. A front 20mm front bar had an effective roll stiffness of 200lbs/sq in. A 25mm bar had a roll stiffness of 500lbs/sq in. So you can see a 5mm (25%) increase in diameter of the roll bar translated to a 150% increase in roll stiffness.
I don't have the exact formula and calculating for a sway bar is more difficult since it has levers, but you get the point, it should make a difference and at only ~$100 it's probably not a bad deal.
Also keep in mind that this should stiffen up the rear (increase rear roll stiffness) a fair amount since changes in swaybar diameter are to the 4th power when calculating roll stiffness (effective spring rate).
An example that comes to mind (not directly comparable) are from some VW's. A front 20mm front bar had an effective roll stiffness of 200lbs/sq in. A 25mm bar had a roll stiffness of 500lbs/sq in. So you can see a 5mm (25%) increase in diameter of the roll bar translated to a 150% increase in roll stiffness.
I don't have the exact formula and calculating for a sway bar is more difficult since it has levers, but you get the point, it should make a difference and at only ~$100 it's probably not a bad deal.
Yes it is there.
EC
[Modified by Crosser, 7:32 AM 11/1/2001]
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